Custom compression supplier in China
Plastic wholesale factory 2026: Materials Used in Compression Molding – A wide range of materials can be processed using compression molding, including both thermosetting and thermoplastic polymers. Common thermosets like phenolic, epoxy, melamine, and polyester resins are ideal due to their ability to retain shape after curing. These are often reinforced with fibers such as glass, carbon, or Kevlar to enhance mechanical strength and thermal stability. For thermoplastic variants, materials like polyethylene (PE), polypropylene (PP), and polyamide (PA) are used for products requiring toughness and recyclability. Advanced composites combining resin matrices with continuous fiber reinforcement are also molded through this process, enabling lightweight structures with exceptional performance. The choice of material depends on application requirements such as temperature resistance, rigidity, and electrical insulation. With continuous advancements in polymer science, compression molding materials now offer superior flow characteristics and reduced cycle times, making them suitable for demanding industrial applications. Read additional info on compression molding service.
As an injection mold manufacturer, Mulan Group has been engaged in plastic molding molds for more than 25 years. We have a professional in-house mold manufacturing factory, located in Shanghai, China, a high-quality mold manufacturing base, equipped with a team of engineers with rich manufacturing experience and professional knowledge. Rely on digital programming software and equipment to customize precision injection mold services after the part design is completed. Allow the material to fill the mold cavity without obstacles to ensure that the product will not have defects. For some appearance parts, a smooth surface is an important factor in obtaining market value. We will use very small pinhole feeds. There are no traces on the surface of the product, and it is hidden on the surface of the product installation part.
Extrusion Blow Molding Explained – Extrusion blow molding (EBM) is one of the most widely used forms of blow molding. It begins by extruding a molten tube of plastic, called a parison, between two halves of a mold. The mold then closes around the parison, and compressed air inflates it until it conforms to the mold cavity. After cooling, the mold opens and ejects the finished part. EBM is especially suited for making hollow products like bottles, jerry cans, and drums. One major advantage of this method is its flexibility in producing items of various shapes and sizes, from small containers to large tanks. Multi-layer EBM can even combine different plastics to achieve barrier properties, such as resistance to oxygen or UV light. Despite its simplicity, process control — including parison temperature and thickness distribution — is critical for ensuring consistent product quality and minimizing material waste.
Blow molding is widely used in the production of hollow structure products, such as: water bottles, oil drums, chemical turnover barrels, floats, medical reagent bottles, etc. Injection blow molding is suitable for small container production, and stretch blow molding is suitable for medium and large-volume container products. However, the surface effect of injection blow molded products is better than stretch blow molding, and can be highly transparent and flat. Drinking water bottles are the most typical injection blow molding. Blow molding has many limitations due to the molding principle, so there are a few points that should be paid attention to when designing blow molding products: Only limited to hollow structural parts. The wall thickness is thin and the strength is low. By adding other materials in the multilayer part, the effect of blocking sound and heat sources is increased. (So not recyclable) A second trimming is required to remove burrs and excess material.
We can come into contact with toothbrushes every day. Its base material is injection molding made of steel plastic, which is very hard and tough. The rubber handle on the handle can effectively help us to prevent slippage, and can improve the color matching and aesthetic appearance. The product is derived from the overmolding process and is suitable for mass production. Improve product surface friction; Can achieve a more ergonomic design; Improve product electrical insulation; Create products with better sealing; Effectively isolate vibration and sound transmission. Improve color matching options and improve aesthetics. Reduce the use of harmful adhesives and other consumables. Increase manufacturing efficiency, suitable for mass production. The product structure is not restricted, and the adaptability is high.
Rich production experience allows Mulan Group’s services to meet the products of various industries. Mulan Group has participated in many important product development and manufacturing to understand the use characteristics and requirements of different products. In other words, only a brief description of the customer, the production plan and the actual cost of the product can form a formal report. Mulan Group has participated in many important product development and manufacturing to understand the use characteristics and requirements of different products. In other words, only a brief description of the customer, the production plan and the actual cost of the product can form a formal report.